<template>
  <div class="shopcar-container">
    <div class="goods-list">
      <!--购物清单区域  -->
      <div class="mui-card" v-for="(item,i) in goodslist" :key="item.id">
        <div class="mui-card-content">
          <div class="mui-card-content-inner">
            <mt-switch
              v-model="$store.getters.getGoodsSelected[item.id]"
              @change="selectedChanged(item.id,$store.getters.getGoodsSelected[item.id])"
            ></mt-switch>

            <img :src="item.thumb_path" alt />
            <div class="info">
              <h1>{{ item.title }}</h1>
              <p>
                <span class="price">￥{{ item.sell_price }}</span>
                <!-- 父组件向子组件传值 -->
                <numbox :initcount="$store.getters.getGoodsCount[item.id]" :goodsid="item.id"></numbox>
                <!-- 从购物清单中的数据构造 ：{id:count,id:count} -->
                <!-- 删除购物车清单中的商品，一要删除状态管理store中的数据，二要删除购物车goodslist中的数据 -->
                <!-- 下行item.id用于删除store,i用于goodslist -->
                <a href="#" @click.prevent="remove(item.id,i)">删除</a>
              </p>
            </div>
          </div>
        </div>
      </div>

      <!-- 结算区域 -->
      <div class="mui-card">
        <div class="mui-card-content">
          <div class="mui-card-content-inner jiesuan">
            <div class="left">
              <p>总计(不含运费)</p>
              <p>
                已勾选商品
                <span class="red">{{ $store.getters.getGoodsCountAndAmount.count }}</span>件，总价
                <span class="red">￥{{ $store.getters.getGoodsCountAndAmount.amount }}</span>
              </p>
            </div>
            <mt-button type="danger">去结算</mt-button>
          </div>
        </div>
      </div>
    </div>

    <p>{{ $store.getters.getGoodsSelected }}</p>
  </div>
</template>

<script>
import numbox from "../subcomponents/shopcar_numbox.vue";
export default {
  data() {
    return {
      goodslist: [], //购物车商品清单数据
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    getGoodsList() {
      // 1.获取到store中的所有商品的id，然后拼接出一个用逗号分隔的字符串作url的参数
      var idArr = [];
      this.$store.state.car.forEach((item) => {
        idArr.push(item.id);
      });
      // 购物车中没有清单
      if (idArr.length === 0) {
        return;
      }
      // 获取购物车商品列表
      this.$http
        .get("api/goods/getshopcarlist/" + idArr.join(","))
        .then((result) => {
          if (result.body.status === 0) {
            this.goodslist = result.body.message;
          }
        });
    },
    remove(id, index) {
      // 点击购物车中的删除，把商品从store中根据传递的id删除，同时把组件中的goodslist中，对应要删除的那个商品，使用index来删除
      this.goodslist.splice(index, 1);
      this.$store.commit("removeFromCar", id);
    },
    selectedChanged(id, val) {
      // 购物车中，点击开关，把最新的开关状态同步到store中
      // console.log(id+"------"+val)
      this.$store.commit("updateGoodsSelected", { id, selected: val });
    },
  },
  components: {
    numbox,
  },
};
</script>

<style lang="scss" scoped>
.shopcar-container {
  .mui-card-content-inner {
    display: flex;
    align-items: center;
  }
  background-color: #eee;
  overflow: hidden;
  .goods-list {
    img {
      width: 60px;
      height: 60px;
    }
    h1 {
      font-size: 13px;
    }
    .info {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      .price {
        color: red;
        font-weight: bold;
      }
    }
  }
  .jiesuan {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .red {
    color: red;
    font-size: 16px;
    font-weight: bold;
  }
}
</style>